Numbering stamp for printing machines



Sept. 7 1926. 1,598,957

a. D. CHAMBERLIN NUMBERING STAMP FOR PRINTING MACHINES Filed Dec. 16, 1924 INVENTOR. Beqjamiwflfllzamberlm, B Yfi Patented Sept. 7, 1926.

UNITED STATES 1,598,957 PATENT OFFICE.

BENJAMIN I). CHAMBERLIN,

OF ROCHESTER, ,NEW YORK, ASSIGNOR TO EASTMAN KODAK COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

NUMBERING STAMP FOR PRINTING MACHINES.

Application filed December 16, 1924. Serial No. 756,348.

This invention relates to photography, and more particularly to numbering stamps for photographic printing machines. One object of my invention is to provide such a stamp which is mounted on a carrier separated from the platen. Another object is to provide a numbering stamp which is moved a comparatively short distance between its stamping and its inking positions, so that it is accessible for changing the number. Another object is to provide, a. printing stamp which will function after the printing paper is clamped upon the printing panel by the platen. Another object of my invention is to provide mechanism for carrying the stamp which will require but little energy for its operation. Another object is to provide a carrier for the printing stamp which will press the stamp firmly upon an inking pad at one end of its stroke, and upon the paper held in printing position at the other end of its stroke. Other objects will appear hereinafter from the following specification, the novel features being pointed out in the claims at the end thereof.

In the drawings wherein like reference characters denote like parts throughout:

Fig. l is a side elevation of a printer equipped with a stamp constructed in accordance With, and embodying one form of my invent-ion;

Fig. 2 is a top plan view of the stamp carrier and its supporting links; 35 Fig. 3 is an enlarged fragmentary section showing a portion of the printing panel with the stamp in its operative position; and

Fig. 4 is a perspective view of a contact spring which may be used with mydevice.

This stamp may be used with the printing machine shown in my co-pending application Serial No. 756,347 filed Dec. 16, 192i.

In the present embodiment, the printing machine may include atop frame member 1, in which there is a printing panel 2, over which a platen 3 may be moved by means of a handle/1. This handle is connected vto-an arm 5 of a bell crank lever, the short arm 6 of which forms one linkof a toggle 6-7. These toggle links are pivoted together at- 8, and their movement-is limited in one direc tion bya lug 9 carried by link 7. The bell crank lever is pivoted at '10, upon a spring support 11, which, isattached to forined-up n my co-pending application above noted.

Link 7 is pivoted at 13 to an upwardly extending bracket 14.

An arm 15 extends out from this bracket and carries a stud 16, upon which the link 1"? is mounted. This link, as best shown in Fig. 2, preferably consists of two arms 17 and 17" which are separated at their lower ends 18 and 18 by means of a sleeve 19 which surrounds a shaft 20. This shaft passes through flanges 21 of the stamp carrier 22, and also through the end 23 of a link 24, the other end of which 25 is carried upon a stud 26 which passes into link 7.

The stamp carrier is supported in the middle by a curved link 27 which is pivoted to the flanges 21 of the carrier upon a shaft 28. This shaft may be encircled by a sleeve 29. Link 27 is carried at its lower end by a stud 27 which is attached to the main frame 1. i

The outer end 30 of the stamp carrier, as best shown in Fig. 3, supports the stamp 31 upon four screws 32, each of which is encircled by a spring These screws pass up through apertures 3 1 in the stamp carrier, and the screws may slide freely through these openings. The stamp may be of any well known type, but is preferably of the type shown herein. A plunger 35 may be depressed to change the number carrying discs 36.

The platen 3 may consist of a casting, as shown, having raised sides 37, and rearwardly extending arms 38 which are hingedly attached to a shaft 39. hen the handle 4; is moved, the toggle 6*? will move the platen about its hinge, the position of the toggle being indicated by the dot and dashed lines 6 and 7 of Fig. 1. The platen is provided with an aperture 40 through which the stamp may operate, and is preferably faced with felt or plush ll.

In order to secure good contact around the printing stamp numbers between the paper P and the negative N, the platen is preferably provided with a pressure spring 50, such as is shownin Fig. 1. This spring is made of thin metal and is provided with two rows of apertures 51 which'are used for inserting screws through holes 52 to attach the spring to the platen. This spring is normally curved in cross section, but whenpressed against the printing paper'P it becomes fiat, is shovin in Fig. 0 he Walls of the aperture ail closelv Silll'OllUlw the type discs 36.

In l l the operative or stamping tion of the stamp 31 is shown in full lines. this position, the stamp carrier is pressed downwardly upon the springs 33 so that the stamp is lirinlv held against the printand tree to move in a univerinc paper 1 a. 1; J V J: I sal direction. 10 move the 1p ironi this posil1 posinon to its inking; position, shown 111 brtl'en lines a; ll, the stamp is moved throwg'h a subslantiallx trcnate lath it.

brim; the platen 3 1 contact with paier l a neaath swings noon the links 17, the sa111p an up-and-dovtn an. i is lirml 'ih iosition of 11d 2T in dot l\lilg over the e (i'-? comes a position in \v 11 the c a 8 lies in the pouition ind eated v the cross 11, at which time the platen is in contact with the paper. Y this position, the stamp ill has notyet, 1 with the paper. 1 rui-ther o1 handle i will bring the ogglc T to their latched position, in 3 will rest against the lug 9. 1er movementof the tog lcs t3-"2 stamp ctiier to mute and 11p through the openiir" ll) so L 1 its legend upon the pa or P. 1-. detail description 0 110 toggle and )laten 1' t can be had b v referring. to my causes t1 press I n for prir-itingmachines ahove rethe platci'i 1 h is 111 tch shorter i a very use L s1 is retained in an 11 n which the plunger 55 ci. pflr llltlll. 1 1

readily o1 erated being close to its printing; position at all times. 1- 111 operator does not to change the numbering 111a be readily removed tin, en's so thatthe 1111111- to reach l ar it plurality of linlts pivoted to the stamp arrier for supporting it, one of said links being pivoted to the platen-moving mechanism whereby the stamp carrier is moved hy movement oi" the platen-moving mechanism.

.l 11 a photographic printing machine having a printing panel and a platen movable thereover, the combination with a hinge carrying said platen, of platen-moving met-hind adapted to move the platen about its hinge, a stamp crrier, means for supporting the stamp carrier/and means,

to the platen-moving mechanism, curved path the stamp through a t 1 11 is swung about. its hinge.

in a photographic printing machine liming a printing panel and a platen movable thereover, the combination with a stamp carrier comprising a member than the platen, of mechanism for moving the platen, and means connecting the platen mechanism and the stamp carrier 1 111 the latter when the platen is in a photographic printing machine, combination with a printer haxin; a panel, of an apertured platen pteal to move to cover and uncover the el, mechanism for moving the platen, a ntin 1111p adapted to operate through ar in the platen, a stamp carrier acnnen of the platen. and connections 1 the stamp carrier and platen-movaechanisni for moving the stamp to and item its opaative position in which the 1p is moved through the aperture in the atcn.

5. In a photographic printing machine, the combination with a printer having: a print ng panel therein, of an apertured platen iltltll llfitl to cover and uncover the panel, mechanisn' adapted to more the aten to and from the printing panel, an :t pad on the printer and a printing stamp, f the stamp pivotally mounted 1 printer and adapted to swing the 111p "r: n an inking position to a stampposition in which the stamp operates 11;;11 the aperture in the platen, and conhetween said printing stamp carand the mechanism for moving the adapted to move the stamp in timed ion to the platen.

6. In a photographic printing machine, the combination with a printer having a printing panel therein, of an apertured platen adapted to cover and uncover the panel, mechanism adapted to move the platen to and from the printing panel, said mechanism being :11? 'anged to cause the platen to lie against the panel before the mechanism comes to rest, the movement aftei so lowering the platen being adapted to increase the pressure upon the panel, a print separate All) ing stamp, a printing stamp carrier, and means for moving the carrier including a connection between the carrier and the platenmoving mechanism, said connection being arranged to cause the stamp to function after the platen is lowered upon the printing panel.

7. In a photographic printing machine, the combination with a printer having a printing panel therein, of an apertured platen adapted to cover and uncover the panel, mechanism adapted to move the platen to and from the printing panel, said mechanism being arranged to cause the plat en to lie against the panel before the mechanism comes to rest, the movement after so lowering the platen being adapted to increase the pressure upon the panel, a printing stamp, a printing stamp carrier, and means for moving the carrier including a connection between the carrier and the platen-moving mechanism, including a link adapted to move the stamp to its printing position after the platen has come to rest upon the printing panel, the movement of the platen-moving mechanism for increasing the pressure on the platen causing the stamp to function.

8. In a photographic printing machine, the combination with a printer having a printing panel therein, of a platen adapted to cover and uncover the panel, mechanism adapted to move the laten, a printing stamp, a support for t e printing stamp, links for supporting the printing stamp, one link being pivoted to the printer above the support, and another link being pivoted to the printer below the support, and connections between the support and the plat eninoving mechanism adapted to swing the stamp upon its links into an inking and a stamping position.

9. In a photographic printing machine, the combination with a printer having a panel and a platen adapted to cover and uncover said panel, of mechanism for moving the platen, a rinting stamp, mechanism for moving t e printing stamp, con nections between the two mechanisms for moving the latter by the former, the connections being such that the extent of movement of the stamp will be much less than the extent of movement of the platen.

10. In a photographic printing machine,

the combination with a printer having a panel and a platen adapted to cover and uncover said panel, of mechanism for moving the platen, a printing stamp, mechanism for moving the printing stamp, connections between the two mechanisms by which the stamp is moved through a separate path from the platen by the platenmoving mechanism.

11. In a photographic printing machine, the combination with a printer having a panel and a platen adapted to cover and uncover said panel, of mechanism for mo ing the platen, a printing stamp, a mount for the printing stamp comprising a plu rality of pivoted links, a connection between the platen-moving mechanism and the stamp carrier including a link, the linkage being adapted to move the stamp through a path separate from the path of the platen and being moved by the platenmoving mechanism, the path of the stamp being such that the stamp is given an upand-down movement.

12. In a photographic printing machine, the combination with a printer having a panel therein, of a platen'adapted to cover and uncover said panel, mechanism for moving the platen, a printing stamp, a movable carrier for the printing stamp, a support for the carrier comprising a plurality of links pivoted to the printer and to the carrier upon which the stamp is adapted to swing between an inking and a stamping position, and means including a link attached to the platen-moving mechanism for swinging the stamp.

13. In a photographic printing machine, the combination with a printer having a panel therein, of a platen adapted to cover and uncover said panel, mechanism for moving the platen, a printing stamp, a movable carrier for the printing stamp, a plurality of links for supporting the carrier, two links being pivoted to the frame and to the carrier, said pivotal points on the carrier being spaced apart, and a link pivoted also to the carrier and to the platen-moving mechanism adapted to move the platen and stamp in timed relation.

Signed at Rochester, New York, this 12th day of December, 192-1.

BENJAMIN D. CHAMBERLIN. 

